First non-HP pocket calculator with scientific functions ?

[Gene]

The HP 35 and HP 45 were the first two pocket calculators with scientific functions (my definition here is sine, cosine, tangent).

Who made and what was the first non-HP scientific pocket calculator?




My estimate of the answer?

Rockwell 202SR. Ad appeared on 12/8/1973 <--- wow <---- for the 202SR at $195.

Followed closely by the Bowmar MX-100 on 1/16/1974.

The first TI SR-50 ad I have found is on 2/2/1974.

So Rockwell was second!