Yep, European fuses. Used at various points by just about all of them. IIRC, the size range isn't quite as wide as the SAE fuses used here, but it's close.
Bosch type fuse, seems to often be called torpedo fuse in english. Shouldn't be too hard to find. Don't really like them, bad connection against the fuse holder a bit too often.
I had them in 1960's Volvos. Occasionally spin the fuse a couple of turns in the holder, that brakes thru the corrosion that forms at the fuse ends. Long term solution is a partial re-wire using a late model fuse holder.
Ok. Thanks. My only experience with them is with tractors, and I don’t recall any problems. Maybe I was using the European type fuse in a glass holder type and not the other way around. My apologies.
Great thanks for all the replies guys! I'm probably going to look into just replacing the fuse block with one that holds the glass tubes or even blades.
The fuse holder is two parallel tabs with holes in them, the pointed ends of the fuse fit into the holes in the tabs. This results in a very small contact area at both ends, problematic for high current six volt systems. As TrailerTrashToo said, you need to roll them in the holder regularly to maintain contact, just wait till the circuits have been off for a while as the fuse can get quite hot. I had lots of frustrating experience with these in '60's Volkswagens...
They should be available at any auto parts store. Otherwise, harvest some from an older BMW, Mercedes, VW, etc. at the salvage yard.
I used to have a few small drawers of these, back in my Porsche days. The "open air" style are still in regular production, and can be had online, for cheap, by the handful.
In a 'pinch', some fellows have substituted 'rounds' from .22 long rifle. Watch your inseams and crotches... could get a real 'bang' outa that.
I personally would go with the blades, because as time goes on the older type will only get harder to find. Even though it’s not traditional.
The ones pictured above with the torpedo ends were the more common ones down here ( New Zealand) before the blade type took over. Probably where the confusion comes into it. Our stuff back in the ‘60s - ‘70s was mostly European.