The first part of Mastro Auctions' catalog auction ends tonight, with the rest of the lots ending tomorrow night. It's a great time for auction followers, with Mastro tonight, Robert Edward and Heritage following on May 3 and a bunch of others, like Mile High Card Co. (tonight), Vintage Authentics (May 8), Bricol (May 8), Game Used Universe (May 8) and Lelands Internet (May 4), along with Memory Lane and Grey Flannel following in the middle of the month.

A few of the key items in Mastro include, with current bids in parentheses:

• 1962 Topps Complete Set, No. 2 on the PSA registry (currently at $70,000)
• 1934 Babe Ruth game-used home run No. 702 bat signed by Ruth, Gehrig and 16 others ($57,500)
• 1894 N302 Mayo's Cut Plug complete set, No. 1 on the PSA registry ($50,000)
• 1958 Mickey Mantle game-used Yankees road jersey ($40,000)
• 1920 Walter Johnson game-used, sidewritten bat ($40,000)
• 1909-11 T206 White Border SGC-graded collection ($38,000)
• 1975 Topps Baseball Unopened vending case ($38,000)
• 1960 Topps Baseball Complete set, No. 15 on the PSA registry ($36,000)
• 1931 Josh Gibson twice-signed Harrison Studios photo postcard ($34,000)
• 1952 Bowman Mickey Mantle PSA 10 ($34,000)
• 1925-31 Lou Gehrig game-used bat ($28,000)

I'll try to get a post with some Robert Edward Auctions and Heritage highlights up by the end of the week. If you aren't registered on the sites and don't get the catalogs, you are really missing out. Even though most of the stuff is out of the normal person's price range, just looking through the catalog is a pretty cool experience.