yes I can confirm in all probability a possible Dutch origin for those basket hilted swords.
I have sold this sword from my collection through eBay, the sword came from the Henk Visser collection, a well known collector of Dutch arms. btw the pommel is fine.
the hilt of the Pictures page (Dutch swords) posted at eBay are all found in Dutch soil.
they may of course have been coming from Germany but it is also quite possible that they are (partly) made in Netherlands.if I remember correctly, there was a sword in the Visser collection with the same basket hilt as #51 #52(+ Higgins) with a Dutch name on the blade "Hans Adam" published by JP Puype in the Visser collection.
I have had some discussions with the writer of the above Book, Dutch weapon specialist, arms and armour writer/authority and former curator of different Museums JP Puype about the possible Dutch origin of those basket hilts.
see also the DUTCH basket hilts post #3 #4 #24 with the same basket in.