SH3 Stock ship model
HSL = Hositipal Ship
and
AMC or AXC= British Armed Merchant Cruiser
IS Identified as ESPERANCE BAY Passenger Ship 3 Ships in total serves between Australia and Britain before the war all converted to AMC after the ware started.

ESPERANCE BAY
MORETON BAY
JERVIS BAY
Name Date completed War Service Fate
Builder Length Breadth Depth Draft Tonnage
JERVIS BAY 01/09/1922 01/08/1939 Admiralty requisition - armed merchant cruiser 05/11/1940 sunk by gunfire from German cruiser ADMIRAL HIPPER
Vickers Ltd., Barrow-in-Furness 530.6 ft 68.3 ft 39.9 ft 13839 Ton
ESPERANCE BAY 16/02/1922 01/ 09/1939 - 1941 Admiralty requisition - armed merchant cruiser 06/07/1955 arrived at Faslane for breaking by Shipbreaking Industries Ltd.
Vickers Ltd., Barrow-in-Furness 530.6 ft 68.3 ft 39.9 ft 13837 Ton
MORETON BAY 18/11/1921 01/08/1939 - 09/1941 Admiralty requisition - armed merchant cruiser 13/04/1957 arrived at Barrow for breaking by T. W. Ward Ltd.
Vickers Ltd., Barrow-in-Furness 530.6 ft 68.3 ft 39.9 ft 13850 Ton
Notes: There were about 60 AMCs served Royal Navay during WWII 5~6 distinguishable group of ships plus few individules.This ship also resembles those Cunard A-Class ship a lot but closely compare I am confident It is the Bay Class ship it was after.Bay Class ship features a longer forward deck area.The different from the model and the ship photo is that the forward and afterward dericks which is attached to the ventilator is removed but this could be true when the ships were converted to AMCs.
There is no indication that any fo these ships was served as hospital ship.However because of the MFM design was so common it's still under revision whether using this model as a hospital ship is approperite.