Following a truncated 60 subject set of Baseball Buttons that were released in 1956 Topps started issuing a fairly steady stream of pin, or more precisely, button issues in the 1960's. These were eventually sourced from Japan and imported into the United States. After a half-decade hiatus they came back with what may be their best non-sport button issue ever, 1974's Batty Buttons. Some sources say 1973 and there are no commodity codes to guide us, so either year is possible. Twenty-four subjects made up the checklist, which was a decidedly wide-ranging one.
I found a nice scan of the pack over at the Busy Beaver Button Museum when I realized I did not have one:
Frankenstein's Monster, The Phantom of the Opera and Wolfman-nice! The full roster of monsters is like so:
18-Wolfman (I'm Available)
19-The Mummy (Remember Mummy's Day)
20-Werewolf (You Make Me Drool)
21-Wolfman (Warning-Full Moon Tonight)
22-Frankenstein's Monster (Ain't I Cute?)
23-Monitor of Metaluna (I'm A Brain )
24-The Phantom of the Opera (I Want You).
The Monitor of Metaluna may confuse even some classic horror fans but it's taken from the 1955 movie "This Island Earth", which was a color release from Universal. As you can imagine, this subset of buttons is quite popular and can get a little pricey; not crazy, but for a 1970's ancillary Topps set they can bring strong prices.