Results for “sinclair aircraft sign”

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SINCLAIR AIRCRAFT CONTEMPORARY SIGN: CONTEMP. ROUND STEEL SINCLAIR AIRCRAFT SINGLE SIDED SIGN

Feb 21, 2026

SINCLAIR AIRCRAFT CONTEMPORARY SIGN

Meissner's Auction Service

Est. $100-$250

Large Vintage Sinclair Aircraft Double-Sided Porcelain Enamel Advertising Sign – 48" Round: Large-format vintage Sinclair Aircraft advertising sign featuring the iconic green airplane graphic within the classic red, white, and green Sinclair circular design. This impressive 48-inch diameter

Feb 20, 2026

Large Vintage Sinclair Aircraft Double-Sided Porcelain Enamel Advertising Sign – 48" Round

Grandview Art & Auctions

Est. $1,000-$1,500

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