jno - we manage to sell some to the National Library of Scotland which is great. I think that they are at the stage of having most of the Scottish books ever printed.
You are right - when these books were printed they were boring and only of interest to a few people (people in Consuls and sailors ☺). There can't be many people who want such a book now.
Our main problem is that Oxfam doesn't seem to have worked out a plan to direct people to our online shop. We have 1350 books and music items on-sale for our shop alone - there have to be zillions on their site.
It is the worse site that I have ever seen from a buyers point-of-view, navigation is poor.
Anyway as a volunteer it is not 'my' problem but they could do so much better.
I will leave this link here - pass the word, please!
https://www.oxfam.org.uk/shop
I will have a look at the book about sailors tomorrow.