{"product_id":"the-sunken-chamber-baltimore-caisson-engineering-blueprint","title":"The Sunken Chamber Baltimore Caisson Engineering Drawing","description":"\u003cp\u003e\u003cem\u003eThe Sunken Chamber Baltimore Caisson Engineering Blueprint\u003c\/em\u003e charts the strange architecture of a lighthouse built from the seabed up — a pneumatic iron cylinder sunk into Chesapeake mud, its working chamber pressurized so men could dig beneath the Bay while the tower rose above them. The draftsman's lines trace not just a structure but a descent, every rivet and bulkhead drawn with the gravity of someone who knew the weight of water overhead.\u003c\/p\u003e\n\n\u003ch3\u003eAbout the Source\u003c\/h3\u003e\n\u003cp\u003eBella Frye sources lighthouse drawings from American maritime archives — the U.S. Coast Guard, National Archives, and historical societies along the Atlantic, Pacific, and Great Lakes coasts. These are engineering documents, not blueprints. The aged paper tone, the hand-drafted weight of the linework, and the original notations are preserved in the print.\u003c\/p\u003e\n\n\u003ch3\u003eMaterials \u0026amp; Finish\u003c\/h3\u003e\n\u003cp\u003ePrinted to order in our Pacific Northwest studio on premium 380gsm cotton canvas with archival pigment inks. Hand-finished and framed in our signature ornate frame with verdigris corner detail, available in three finishes:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEbony\u003c\/strong\u003e — deep black with carved ornate detailing; dramatic against light walls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerdigris\u003c\/strong\u003e — aged copper-green with antique patina; the signature Bella Frye look\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBourbon\u003c\/strong\u003e — warm walnut tone with ornate relief; rich and historically grounded\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eStretched canvas (frameless gallery wrap) is available for those who prefer a frameless presentation.\u003c\/p\u003e\n\n\u003ch3\u003eWhere It Belongs\u003c\/h3\u003e\n\u003cp\u003eCoastal homes, libraries, studies, captain's rooms, maritime offices, and any space where American maritime history earns wall presence. Pairs naturally with vintage nautical charts, ship drawings, and other documents from the Bella Frye Maritime \u0026amp; Light Stations collection.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003ePremium 380gsm cotton canvas, archival pigment inks\u003c\/li\u003e\n\u003cli\u003eThree frame finishes: Ebony, Verdigris, Bourbon\u003c\/li\u003e\n\u003cli\u003eStretched canvas option available\u003c\/li\u003e\n\u003cli\u003eHand-finished in our Pacific Northwest studio\u003c\/li\u003e\n\u003cli\u003eArrives ready to hang\u003c\/li\u003e\n\u003cli\u003eFree shipping on every order, ships next business day\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bella Frye","offers":[{"title":"18x24 \/ Canvas Wrap","offer_id":52570683998517,"sku":"V77_the-sunken-chamber-baltimore-caisson-engineering-blueprint","price":146.85,"currency_code":"USD","in_stock":true},{"title":"18x24 \/ Bourbon Frame","offer_id":52573886382389,"sku":"V77_the-sunken-chamber-baltimore-caisson-engineering-blueprint","price":146.85,"currency_code":"USD","in_stock":true},{"title":"18x24 \/ Ebony Frame","offer_id":52573886415157,"sku":"V77_the-sunken-chamber-baltimore-caisson-engineering-blueprint","price":146.85,"currency_code":"USD","in_stock":true},{"title":"18x24 \/ Verdigris Frame","offer_id":52573886447925,"sku":"V77_the-sunken-chamber-baltimore-caisson-engineering-blueprint","price":146.85,"currency_code":"USD","in_stock":true},{"title":"24x36 \/ Bourbon Frame","offer_id":52573886480693,"sku":"V77_the-sunken-chamber-baltimore-caisson-engineering-blueprint","price":196.95,"currency_code":"USD","in_stock":true},{"title":"24x36 \/ Ebony Frame","offer_id":52573886513461,"sku":"V77_the-sunken-chamber-baltimore-caisson-engineering-blueprint","price":196.95,"currency_code":"USD","in_stock":true},{"title":"24x36 \/ Verdigris Frame","offer_id":52573886546229,"sku":"V77_the-sunken-chamber-baltimore-caisson-engineering-blueprint","price":196.95,"currency_code":"USD","in_stock":true},{"title":"24x36 \/ Canvas Wrap","offer_id":52573886578997,"sku":"V77_the-sunken-chamber-baltimore-caisson-engineering-blueprint","price":196.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7183\/8773\/files\/6_1_47a3cab1-a4bc-47c9-9534-c96442ac39c9.webp?v=1776346906","url":"https:\/\/bellafrye.com\/products\/the-sunken-chamber-baltimore-caisson-engineering-blueprint","provider":"Bella Frye","version":"1.0","type":"link"}