| stellafane.org | |
| 网站标题： | Stellafane: * of the Springfield Telescope Makers |
| 网站简介： | Stellafane, * of the Springfield Telescope Makers Inc., Springfield, Vermont, USA |
| 关键字： | Stellafane Springfield Telescope Makers amateur telescope making Russell W. Porter making grinding polishing amateur astronomy Stellafane Convention |
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