Gateway Stamp Company has provided collectors well over 1 MILLION authenticated certified autographs over the last 30 years.
Silk Cachets from Gateway Stamp Company
Even though a "stamp company", Gateway rarely dealt in stamps, going down a new and creative road becoming one of the world's most unique secrets in autograph collecting combining the best in art, color photographs, history and autographs with their full-color silk cachet envelopes. Gateway's first client was Cardinals Hall of Famer Lou Brock with hundreds to follow.

WHAT ARE FULL-COLOR SILK CACHETS?
A "cachet" is a message or design on an envelope marking a postal event. "Full-color silk" refers to the delicate material into which the original art and photography are printed. After which each silk is applied to the envelope, signed by the player and then officially post-marked by the U.S. Post Office IN THE CITY OF THE EVENT !!!

WHY POSTMARKS?
The key to EVERY Gateway cachet is the postmark.The best way to mark a date in history is with a postmark. The rules governing the granting of postmarks GUARANTEE that NO Gateway issue can EVER be re-issued protecting the value of the autographed, postmarked cachets !!!

1952 is often thought of as Topps 1st baseball card set, but it was not.
Topps issued several smaller baseball card sets prior to their huge 1952 set.
The buzz word at Topps back then was "BIGGER is BETTER" for their 1952 Topps set which Topps described as: "GIANT IN BOTH SIZE and NUMBER of CARDS" (407).

Key card in the 1952 Topps set is #311 MICKEY MANTLE. Often called Mickey Mantle's Rookie card - BUT IT IS NOT. That honor goes to his 1951 Bowman.
1952 Topps "High Numbers" (#311-#407), are very, very scarce with an interesting story:
This HUGE set was released in series, released weeks apart. By the last series, baseball was over and football starting.
??? Perhaps the set was too huge ???
Shops had cards left from earlier in the year so many orders were cancelled, thus the scarcity.

Adding interest is how Topps got rid of the now useless cards, including THOUSANDS of MICKEY MANTLE's. They dumped them into the Ocean !!!