Rich

https://graphtech.com/collections/all/products/tusq-acoustic-saddle-gibson I think it is this one.

Hi, The pickup element under the saddle is flexible. You can just remove the saddle, slip the element down into the guitar, and replace the saddle. This should give you an idea of how the guitar sounds without the pickup. I did this with my J45, but found that I liked the sound better with the pickup in place. Oops, sorry, I didn't realize this was an older post.

Rest in peace, Officer.

If you are looking for a replacement Tusq saddle, the G45 saddle radius is 16 inches. You might try this one on Amazon. Graph Tech Tusq 16" Radius Comp. Saddle PQ-9216-C0

Always good to have some extras, Mike.

I believe that Gibson has been installing tusq bridge pins on new guitars. My new 2019 J-45 came with tusq bridge pins.

Could it be a pickup element? The LR Baggs element has kind of a fabric look to it. https://images.reverb.com/image/upload/s--jHYYoedM--/a_exif,c_limit,e_unsharp_mask:80,f_auto,fl_progressive,g_south,h_620,q_90,w_620/v1485634234/bf3y2ay4lblhjmgvxaaf.jpg