There is a good chance it is this, or a chose variant:

which is currently running on
ebay (not my lot).
This example is a bit earlier than yours but is a good match for the letter spacing, etc. These devices were used hard and took some damage, so I discount the lower tail of the "&" being absent on yours. Also yours may have a piece chipped from the loop of the "P". I would be looking for later examples of this device to see if these possibly wear/damage characteristics match more closely.
The "Tr 2" is also an encouraging sign of a match.
Either way, for a couple of bucks you can buy full examples of these cancels on postcards.