Here is a Classic Decca portable from about 1924.
The early Decca machines are the first of the genuine portable gramophones, This Decca Junior is in fair condition and shows signs of wear, but plays well with the correct original "Crescendo" sound-box.
Decca were almost unique in using the "reflex" system for amplifying the sound in which the vibrations from the sound-box are bounced onto a polished aluminium bowl and then outwards towards the listener. The effect is surprisingly good.
Delivery through "DPD Local" would be about £30 but with "My Hermes" about £15