Welcome SpookyDave.
Those drums look brand new Cool1
And Yes, they are Pearl made drums. Here is a picture of your drums (only with Pearl badges) from the 1969 Pearl catalog. I had a kit from around 1970 with the same wrap as yours. -well almost the same, mine were blue.
The arm holding your tom has been changed. the original ones were a bit weak, so Pearl changed to sturdier ones with larger hexshaped arms around 1972. However they were also selling upgraded replacement arms that fitted the mount you have. -Thats what is on your drums. I had to replace mine too....
-Take care of those nice drums, I wish I still had my old kit left. -Sold it far to cheap in the 80s.
/Johan M