Old Serif Font

I've been trying to find this font for ages. It's apparently very old, as I haven't been able to find it on any recent sources. The picture is a press release from 1969.

Just the serif font is what I'm looking for, not the plainer font.

Comments

A similar (but not exact match): [[http://new.myfonts.com/fonts/bitstream/geometric-slabserif-703/|Geometric Slabserif 703]]
with a bit of compression, it will be even closer