Perhaps the most sought after British phone in existence. I am pretty confident that there are only two of these phones that still exist complete with bell-sets. This is an FH phone on a Siemens bell-set, the other is an FH phone on an FH bell-set.
This FH 34 phone has the added bonus of a GPO mottled brown bakelite dial and there are only one or two of these around. Neither of these two phones is currently in the UK.
Even without the bell-set, the mottled brown GPO 162 is an impossible to find phone. I am guessing that 10 or less of these exist in good condition, but I am interested to hear what others think.