The Ship you post relates to a Ship of that Number
Namely Rudmore 1911 changed name to Yewhill 1945 the again changed name to
Holdernore 1946 had its end in 1957 (Broken Up)Disposal Data:
BU Boom 13.4.57 [Nijkerk]
The R Number is just his official Discharge Number will look and see what I can come up with.
The CR2 is one of his Documents held
1941 - 1972: Fifth Register of Merchant Seamen
In 1941 the Essential Work (Merchant Navy) Order created a Merchant Navy Reserve Pool. To ensure that seamen would always be available for service, the Government paid them to remain in the Reserve Pool when they were ashore. Thus continuous paid employment instead of casual employment was available to all seamen, and comprehensive and effective registration became possible.
All those who had served at sea during the previous five years, and those who were intending to serve during WWII, were required to register. A new Central Register of Seamen (known as the Fifth Register of Seamen), was established. CR 1 and CR 2 cards of seamen who were still serving in 1941 were removed from the old Fourth Register (see previous section), placed in 'pouches' BT 372 (see section on Seamen’s Pouches) or re-sorted into BT 364 and their details carried forward to the new register in BT 382 located at The National Archives. The Fifth Register of Seamen was maintained until 1972, although occasionally records after this date can be found.
The series BT 382 holds CRS10 Docket books which form the Register. These dockets create a sea service record for each registered seaman. They are arranged alphabetically within eight parts: