Help Identifying speakers

Hi all.
These speakere are from a 1965-67 Ampeg Portaflex.
Its a Jensen but I cant find any more information on the exact model name or wattage rating, ceramic ot alnico ect:
Anybody here good with ID'ing speakers.
The date code is 220652
Thanks.
http://www.lilypix.com/photos/data/c...108_p16553.jpg
http://www.lilypix.com/photos/data/c...108_p16554.jpg
http://www.lilypix.com/photos/data/c...108_p16555.jpg

Those would be Jensens made in the 52nd week of 1966.
Date code breaks down as follows:

220 = manufacturer code
6 = year (since your amp is 65-67, the assumption is 1966)
52 = week

Here's a link for future reference; especially check out the bottom of that page that goes into great detail on Jensen speaker codes. Yours are out of the ordinary.

http://www.provide.net/~cfh/pots.html

Thanks Ric, I knew the date, was wondering if anybody knew the model. IE: C12N ect:

Perhaps its just called Concert series as it says on the bell but I havent heard much about this name which seems kind of odd.

The model is EM1202. What it means is a mystery. The EM is the type of magnet, the 12 is the size, the 02 is the speaker "quality".