[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-18675":3,"doc-seo-18675":27},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"file_id":15,"file_url":16,"file_type":17,"file_size":18,"view_count":19,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":21,"language":22,"language_code":23,"table_of_contents":24,"faqs":24,"seo_title":13,"seo_description":14,"update_tm":25,"read_time":26},18675,687197100911,"Himbo","https://ap-avatar.wpscdn.com/avatar/a000239b6f1da00475?_k=1775820430993990792",8,"Research & Report","Backtrack – Volume 40 No 4, April 2026","Backtrack magazine issue 40(4) for April 2026, focused on recording the history of Britain’s railways. Contents include articles on the Culm Valley branch, Cambridgeshire’s railways, the Waverley Route in colour, the Llanfyllin branch, “Baby Deltics” in colour, and railway heroism. Also featured are publications information, a cumulative index for volumes 31–35, back-issue listings, and submission guidelines for photographic images.","cbCaigKthL1yTJra","https://ap.wps.com/l/cbCaigKthL1yTJra","pdf",38735902,16,1,64,"English","en","",1777068589,161,{"code":4,"msg":28,"data":29},"ok",{"site_id":30,"language":23,"slug":31,"title":13,"keywords":24,"description":14,"schema_data":32,"social_meta":67,"head_meta":70,"extra_data":72,"updated_unix":25},105,"backtrack-volume-40-no-4-april-2026",{"@graph":33,"@context":66},[34,51],{"@type":35,"itemListElement":36},"BreadcrumbList",[37,41,45,48],{"item":38,"name":39,"@type":40,"position":20},"https://docshare.wps.com","Home","ListItem",{"item":42,"name":43,"@type":40,"position":44},"https://docshare.wps.com/document/","Document",2,{"item":46,"name":12,"@type":40,"position":47},"https://docshare.wps.com/document/research-report/",3,{"item":49,"name":13,"@type":40,"position":50},"https://docshare.wps.com/document/backtrack-volume-40-no-4-april-2026/18675/",4,{"url":49,"name":13,"@type":52,"author":53,"headline":13,"publisher":55,"fileFormat":58,"description":14,"dateModified":59,"datePublished":60,"encodingFormat":58,"isAccessibleForFree":61,"interactionStatistic":62},"DigitalDocument",{"name":9,"@type":54},"Person",{"url":38,"name":56,"@type":57},"DocShare","Organization","application/pdf","2026-06-10","2026-04-24",true,{"@type":63,"interactionType":64,"userInteractionCount":19},"InteractionCounter",{"@type":65},"ViewAction","https://schema.org",{"og:url":68,"og:type":69,"og:title":13,"og:site_name":56,"og:description":14},"https://docshare.wps.com/document/backtrack-volume-40-no-4-april-2026/18675","article",{"robots":71,"canonical":68},"index,follow",{"doc_id":7,"site_id":30}]