For The Love Of Port

Thanks Peter. Value aside, can you help me to interpret the information that was provided about these bottles? Cheers.

I have a customer that has two bottles of Madeira. I have not inspected the bottles but was hoping that folks here could help me to identify them from the information provided. The bottles are apparently very old with the tissue paper that is disintegrating. The first one says: Established 1811 Blan...