How many ohms is this speaker?

Scored this old P12R, supposedly from 1956, but don't know how many ohms it is. Can you tell from the markings?

127987

All P12R's that I have seen have been 8 ohm speakers. IF you have a multimeter, read the resitance across the tabs. IT will read close to 6.3ohms if it is an 8 ohm speaker. IT is dated the 33rd week of 1956.

Cool Speaker! I can't tell from makings. If you have a voltage meter, set it to Ohms, place a lead on each speaker contact. 2 to 5 = 4 Ohms. 6 to 8= 8 Ohms.

Very cool speaker and the spider looks in great condition too!

I'm hoping It's 8 ohms so I can put it in my 5E3 build. I scored it off eBay for $70! I'll try getting the readings when I get home.

Yay! The speaker measured 7.3 ohms at the contacts!