` ` ` Motorola made quite a few in that general time period. When I was in uniform in the early 70's, those were standard issue for search and rescue operations and had fairly good range. The P-11 and P-13 shown below were two of the more popular models. The telephone handset was a factory option that disabled the internal speaker on top of the unit as the handset was lifted off the optional handset cradle: http://www.wb6nvh.com/Moto42/Dispatcher%20Packsets.jpg This is one of the first handset portables from 1949 - two watts and virtually useless: http://www.wb6nvh.com/Moto42/FHTRU.jpg http://www.wb6nvh.com/Moto42/FHTRU1V.jpg And then there was the H-23.... a real nightmare to carry around all day: http://www.wb6nvh.com/Moto42/H23AACX.jpg