I am helping my wife build a collection of First Day Covers specially for the 1937 S.P.A. Convention 10 Cent Souvenir Sheet #Scott 797. Since the Asheville Club is our local club, her original objective was to collect one of each of the cachets (Planty's 1977 ver. lists around 41 different cachets) and she currently has almost all of these plus a few more that are not listed in Planty's.

But Planty's also notes that there three different official type FDC cancels; Asheville SPA Convention Station machine cancel, a Washington DC cancel, and a SPA Convention Station town dial style cancel. Here are example of the Asheville SPA Convention Station machine cancel and the Washington DC cancel.

But I noticed that there appears to be two different types of the hand stamp SPA Convention Station town dial style cancel, one with short bars and one with long bars? Is my assumption correct that these are two different cancellers?


Thank you in advance for any feedback.
Don