This has 2 clasps for the lid instead of a lock:
ELIZABETHAN 56
52 gns.
Tape Recording and Reproduction Magazine Sept 1957 Page 25
https://www.americanradiohistory.com...UK-1957-09.pdf
54 gns in March 1958 and the Essex is 75 gns:
https://www.americanradiohistory.com...UK-1958-03.pdf
Perhaps superseded by the new Elizabethan ESCORT which is advertised at only 45 gns in June 1958 page 5:
https://www.americanradiohistory.com...UK-1958-06.pdf
"A sound idea!" if you scroll down this:
https://thevintagetoyadvertiser.org/...appy-new-year/
Not identical but a lower price of 48 gns.
David