On closer inspection, the Bonner transmitter in my collection is the not the same as in the magazine. Mine doesn't have the row of switches, or pots, cross the top.
Perhaps it is this one, the Digimite 4. This was followed by the 4RS (standing for "Real Small" I believe) which used the same TX but a smaller RX and servos.
For interest, the prices in 1967 were $455 for the 4 and $615 for the 8
Ray