this window is a single pane and single hung window. Opens from window sill upwards. Believe it was made in 1972 approximately by a window company from Florida which no longer exists. Need tension rods on sides. Window will not open and do not want to pry without new rods. The window measures approximately 41W by 68 1/4 L. I have 2 other similar windows but they are much smaller. Aproximately 29W by 68L. Please help so we can use our windows without replacing.
Thank you,
Wendy