1. Mean time between failure curves compared to probability of acceptance. Collection: Early 20th Century Engineering Lantern Slides Date: undated Format: Image Agent: unknown
2. Graph showing failure rate as a function of time and typical failure rate curve. Collection: Early 20th Century Engineering Lantern Slides Date: undated Format: Image Agent: unknown
3. Exponential equation used to estimate the number of failures over a given period of time assuming an exponential rate of failure. Collection: Early 20th Century Engineering Lantern Slides Date: undated Format: Image Agent: unknown
4. Equations deriving failure equations for mean times. Collection: Early 20th Century Engineering Lantern Slides Date: undated Format: Image Agent: unknown
