Besides seeing frass or dust as was suggested. If it is super recent. You will see live silverfish. Is there any old documentation or images of the item(s) in question to compare? Otherwise, I would look for soiling attached to the edges of the holes or ground into the skinned areas. Compared to the rest of the sheet. It may not be obvious.
Sent from my T-Mobile 5G Device Get Outlook for Android<https://aka.ms/AAb9ysg> ________________________________ From: pestlist@googlegroups.com <pestlist@googlegroups.com> on behalf of Mike van der Steenhoven <m.vandersteenho...@mauritshuis.nl> Sent: Thursday, February 23, 2023 3:38:03 AM To: pestlist@googlegroups.com <pestlist@googlegroups.com> Subject: [PestList] Dear Pestlisters, Is there a wat to determin if this damage is recent or historic? We think it might be damage from a silverfish but correct me if you think otherwise. With kind regards, Mike van der Steenhoven Verzonden vanuit Outlook voor iOS<https://aka.ms/o0ukef> [Het beroemdste meisje ter wereld]<https://www.mauritshuis.nl/ontdek-collectie/verhalen/meisje-met-de-parel/> -- You received this message because you are subscribed to the Google Groups "MuseumPests" group. To unsubscribe from this group and stop receiving emails from it, send an email to pestlist+unsubscr...@googlegroups.com<mailto:pestlist+unsubscr...@googlegroups.com>. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/AS8PR08MB8442DD954361176C38B3D3E4EEAB9%40AS8PR08MB8442.eurprd08.prod.outlook.com<https://groups.google.com/d/msgid/pestlist/AS8PR08MB8442DD954361176C38B3D3E4EEAB9%40AS8PR08MB8442.eurprd08.prod.outlook.com?utm_medium=email&utm_source=footer>. Confidentiality Notice This email including all attachments is confidential and intended solely for the use of the individual or entity to which it is addressed. This communication may contain information that is protected from disclosure under State and/or Federal law. Please notify the sender immediately if you have received this communication in error and delete this email from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. -- You received this message because you are subscribed to the Google Groups "MuseumPests" group. To unsubscribe from this group and stop receiving emails from it, send an email to pestlist+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/SN6PR08MB4448F719994D9A4BD192ECF1FDAB9%40SN6PR08MB4448.namprd08.prod.outlook.com.
