Master Cylinder for Chev on eBay

[Grant Bowker]

Tha listing is for a "NOS" Delco master cylinder. The photos show it to have part number 5450261 cast into the body, the parts book for the C15A shows the master cylinder as 5450260. It is clearly marked in the casting as 1-1/4" diameter and has bottom mount studs.
http://cgi.ebay.com/ebaymotors/ws/eB...1123&viewitem=
I know nothing about the seller, other than I've seen other auctions. I'm not sure the photos completely support the NOS statement, but it seems in good shape externally.