We use Hugh Wood International, a British firm with offices in London, New York and Toronto.
They are specifically a firm that insures collectors and the dealers who sell to collectors.
In addition to the usual fire, water and shoptheft coverage they will cover your stock on the way to shows and at shows.
They have been for most of this century the insurer for the American Philatelic Society.
For example, when APS showed the world's most valuable stamp at their International Exhibition a few years ago, HWI not only insured the stamp, and all the others in the Court of Honour, several million dollars value, but also the exhibits themselves, another few million and the stocks of all the dealers at the show.
They are able to understand how fast a dealer stock can change. Or a collection.
Here's how good their coverage is.
APS has a thing called 'circuit books'. A collector puts his unwanted items into a book and mails it to another APS member. The next guy takes what he wants from the book, then mails his payment to the owner and the book to the next guy on the list. Some 50 members later, the book returns to the APS. Think about that. HWI insures the books. There are a few thousand of them circulating at any given moment.
Hugh Wood does not usually do one offs (although they will do temporary* additions ) only selling annual policies.
They do insure other types of collections and dealer stocks.
And yes, including consignments.
*We used them when we brought this item back to Canada. https://sparks-auctions.com/auction-25/
It sold for $285,000 Cdn before buyer's premium and sales taxes. The consignor was pleased.
