Kodak Safety Film

its sad to hear kodak filing bankrupt, stopping digital production, and the stop of slide film. nonetheless, i found these kodak safety film from my grandparents taken during their wedding in the 1950s. and some researching was done to lead to the following conclusions:

• cellulose nitrate was first used for film bases but the problem was that they are highly flammable
• if caught on fire, difficult to extinguish, gives more oxygen to feed the fire and also toxic fumes
• aged and decomposed negatives especially flammable
• 1930s, replaced with cellulose acetate, with safety printed on the negative
• was an advertising point in '40s and '50s for old film boxes and the film itself being identified as safety film
• may include a date code (Kodak print films prior to 2001) or an actual printed 4-digit year.
• may include an emulsion number uniquely identifying the print stock (newer stocks, only)
• No Kodak film manufactured after 1951 is nitrate, and no film of any kind is polyester before 1955.

raw scan with no back light 

assuming these were taken in 1953 as both had 53 on them 

Self Scanned by: Canoscan 8800F

links/references

Kodak Film Number to Film Type Cross Reference Table

Photo.net - Kodak Safety Film

APUG - Kodak safety film

Wikipedia - Film base