Ted,

You wrote:

Would this 36' car have a cubic capacity of 2448? About what range of

years would the metal ends have been installed? Can I assume they
were
built with wood ends?

Since the photograph was taken in Framingham MA in 1959, let's assume it
was a Boston & Albany car - not necessarily a good assumption.

In the January 1938 ORER, there were three 36' boxcar B&A series with
two different inside heights.

Ends IL IH Cubic Qty. Year Blt
35000-36999 Wood 36' 8' 6" 2,601 341 1912
35000-36999 Steel 36' 5" 8' 6" 2,631 1,585
37000-38999 Wood 36' 8' 4" 2,550 368 1912
37000-38999 Steel 36' 5" 8' 4" 2,580 1,552
39000-39904 Steel 36' 3" 8' 4" 2,568 882 1914

The #39000 series were built with steel ends while the other two
originally had wood ends; whatever conversion to steel probably happened
in the 1920's.

I do not know whether the series built with wood ends had steel angle
irons to help hold the ends to the car sides were originally applied or
added later.

All told, the NYC System had built 5,960 cars (including B&A's 2,000)
similar to the B&A #35000 series, 9,950 similar to B&A's #37000's, and
7,405 similar to B&A's #39000's. The photo on page 162 of Kaminski's ACF
is of P&LE #31060, one of 3,000 36' footers having 8'3" Inside Heights
which the NYC acquired - the B&A had none of these cars built in 1910.
For the record, as part of the War Effort in 1943, the B&M rebuilt P&LE
#33596, a 36', 8'4" IH, 2,550' wood-end car, and renumbered it #64680.
The ORER's between 1943 and 1948 include this car as part of the
#64680-65687 series, but its inside height was 8' 4" per the Class Card
Diagram vs. 8'0" for the remaining #64680-65687 series. B&M's original
#64680 was built in 1908, but had been retired in the late 1930's.

Hope this helps, but it probably does not answer the question.

Tim Gilbert