Ovation Guitar #0041 Build Specification and Acoustic Response Log

This is an internal Ovation factory document for guitar number 0041, a Model #1687-8 with serial number 0041-97, containing detailed construction specifications including top bracing weights, bridge weight, and rim weight. The document also includes a frequency response graph dated approximately 9/10/76, showing the acoustic output of the completed instrument across a wide frequency range. Additional notes reference installation on bowl dated 8/3/76 and the presence of carbon splines on the neck.