Timeline of View-Master ownership
Sawyers - 1939-1966
VMI - 1981-1984 (acquires Ideal Group)
View-Master Ideal Group 1984-1989
Tyco Toys 1989-1997
Mattel (Fisher Price) - 1997 - most production has stopped
View-Master International acquired the Ideal Toy Company in 1984 and became known as the View-Master Ideal Group; View-Master Ideal in turn was purchased by Tyco Toys in 1989
Tyco, including the View-Master Ideal Group, merged with Mattel Inc. in 1997. View-Master was placed organizationally in Mattel's pre-school division and is was marketed under the Fisher-Price imprint, who continued emphasis on juvenile content.
According to Wikipedia,
"on March 2009, the Fisher-Price division of toy maker Mattel announced that they had stopped production in December 2008 of the scenic reels depicting tourist attractions. These reels of picturesque scenes and landscape scenery were descendants of the first View-Master reels sold in 1939. Fisher-Price announced they would continue to produce reels of animated characters. In late 2009, Alpha-cine announced it would take up scenic reel production under an agreement with Fisher-Price."
We don't have complete information on the date Fisher Price curtailed making reels and Viewers. At closing they were being manufactured in Mexico. Currently, there seem to be a handful of products available on the market for sale. ALPHA CINE closed their operation for making scenic and custom reels but we do not have a final closing date.
3Dstereo.com currently has a 2 reel set available for sale - ANIMALS OF GALAPAGOS and will release 2 more sets closer to Christmas. These are made in China, wish it weren't so, but we can't find a manufacturer in the US for reels with film.