Different cases for the 41 series?

[BarryT]

Hi all,
. Does anyone know how many different cases were made for the 41 series? Almost every one of them that I've seen are the longer brown case with zipper, like THIS ONE.

. However, my 41cv has a case that resembles what you see with the 55\65\etc series. It's the black case with two tabs and the velcro fold over flap... but unlike the case that my 55 has, this one has no front pouch for the pocket guide book. Apart from the missing front pocket, they're identical.

. Was this a common case for the 41s? If so, does anyone know approximately when hp switched from the black 55 style and started using the newer brown style case?

Thanks everyone