Ricoh Rikenon P 50mm 1.7 Lens & Caps. Pentax K Mount. Ser. No. 176124. Very good condition, minor body wear, glass has no scratches or fungus, smooth focus, blades are snappy. Caps have some wear. Rear cap has a crack but works. Price is $ 37.00 (includes USPS shipping) Shipping within the USA only. Paypal only. If you want his item, request an invoice from me thru paypal. Be sure to include, in your request, the email address you use with your paypal account. FYI - I have 100% positive feedback as a seller on ebay. If you want to check my reputation let me know.