help Identifying speaker - International Electronics

[Dave R]

I was given my ex-father-in-law's speaker, and was trying to find out more about it. From what I understood, he got it in the late 60's or early 70's for a mono (not stereo) setup.

The info I'm able to get from the cabinet is the following:

Manufacturer: International Electronics, Cleveland Ohio
Model Number: Professional Series 8

Cabinet Dimensions
External: 21.5 x 12 x 9.5
Internal: 20 x 10.5 x 7 (24 liters, not counting woofer and port displacements)

port: 4" ID x 5.25 long

The only part number I can find on the driver is on the back of the cone:
21981

Here are some pictures of the cabinet markings and the driver, and measurements I made with a WT3.

Can anyone identify the driver used in this speaker?

 

[Dave R]

I found a similar 8" full range made by Beyma. Maybe the one I have is an earlier version.
http://profesional.beyma.com/ingles/pdf/8AGN.pdf

Anyway, the Beyma might be similar enough to match up for a pair of shop speakers.

 

[planet10]

From the construction, Made in USA. The number is one digit short of an EIA code.

dave

 

[Dave R]

Another search led me to flea-bay. Basket, magnet, cone, and whizzer all more closely resemble this Jensen 8-incher

Vintage 8" Jensen Pro C-855 Two-Way Coaxail Full Range Speaker - Excellent C855 | eBay