Welcome, Sandy. It looks like you have an 11X White sewing machine. I'm not sure which of the WRotary manuals would help, but you can find two manuals for said machines at
https://www.singer.com/support if you put in "WRotary" (without the quotation marks) in the box to the left of the View Manuals box.
I have an 11X that is a little newer than yours. John did a thread about it at
White Rotary 11 - Has Anyone Disassembled This Clutch?
and there is a tutorial about loading the bobbin at
Directions for loading a White rotary bobbin (White Family Rotary, etc.)
Some additional information about White Sewing machines can be found at
https://www.treadleon.net/WhiteSM/whites.html
Janey - Neat people never make the exciting discoveries I do.
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