Lens in nice condition with very nice glass for its age. Judging by manufacture and lettering on the barrel, this lens appears to be made by Bausch & Lomb. Iris has smooth operation and works as it should. Lens comes with homemade lens cap that fits snug as it should, but not too tight.
Barrel says:
Diamo
Extra Rapid Portrait
f-4
H. A. Hyatt Supply Co
St Louis, MO
1084
It was built similar to the design of a Dallmeyer 3A, including the adjustable rear element for soft focus/diffusion control. The dents on the brass of the rear element have no effect on the glass or any operational effect on it's movement.
$1,350 OBO shipped to any address in CONUS
Payment via Paypal (you pay fees), Cash app, cashier's check from a US bank or pickup in Nashville, TN.

Barrel says:
Diamo
Extra Rapid Portrait
f-4
H. A. Hyatt Supply Co
St Louis, MO
1084
It was built similar to the design of a Dallmeyer 3A, including the adjustable rear element for soft focus/diffusion control. The dents on the brass of the rear element have no effect on the glass or any operational effect on it's movement.
$1,350 OBO shipped to any address in CONUS
Payment via Paypal (you pay fees), Cash app, cashier's check from a US bank or pickup in Nashville, TN.

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Best Practices: Always use a verified payment method with buyer protection (avoid "PayPal Friends & Family"). Services like Escrow.com are highly secure. Be suspicious of random unsolicited contact via Private Message. If you see suspicious behavior, please use the Report link on the post immediately.
